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Humans (and animals) are a natural host for viruses and other pathogens. In this newsletter we will look at the demonstrated benefits and effects of red marine algae (RMA) species as antiviral compounds.

There are over 7,000 species of red algae in the phylum Rhodophyta. Most of them are marine algae with a small portion being fresh-water. Published research dating back decades has shown several species to have pronounced antiviral and antitumor activities. In particular, the Gigartinaceae and Dumontiaceae strains have garnered scientific interest for their immuno-supportive properties.
Unique Compounds Present
Unique protein-bound carbohydrates called sulfated polysaccharides seem to be responsible for the major antiviral activity. Also present are phytosterols and sterolins which may have their own benefits. The mechanisms for the antiviral activity include blockage of viral binding sites on cell membranes (forming a shield around the cell membrane preventing pathogens from entering), and inhibition of enzymes required for virus infection of hosts.
Antiviral Activity
The unique polysaccharides present in red marine algae have demonstrated suppression of herpes viruses including HSV-1 (oral), HSV-2 (genital), HSV-6, as well as related chicken pox, shingles and cytomegalovirus. In addition, Gigartina extracts were also effective against the two Herpes strains that were reported to be resistant to the antiviral drug acyclovir. 
Red Marine Algae Supplements
RMA is available in supplement form as well as topical. Pure Planet offers Red Marine Algae Plus, a combination of both Gigartina and Dumontiaceae algaes with the addition of phycocyanin-rich Spirulina, a fresh-water blue-green algae shown to benefit the immune system as well. This product is vegan, gluten free and non-GMO. It comes in a 90-count bottle as well as a convenient travel size of 24 capsules. In Pure Planet’s words, “Many grateful customers and chronic virus sufferers report that Red Marine Algae Plus has changed their lives and have permanently switched to using it over L-lysine and over-the-counter topical creams.”
From Vibrant Health comes Gigartina Red Marine Algae, a single-source algae product shown to provide a very rich source of sulfated polysaccharides. According to the company, the strain Gigartina is the strongest source of sulfated polysaccharides they have found. This product is also vegan, gluten free and non-GMO.
Gigartina RMA Ointment
Also available from Vibrant Health is a topical ointment product. Gigartina RMA Ointment is a soothing, healing, antiviral, antibacterial ointment containing two demonstrated antiviral compounds, Gigartina RMA and lemon balm extract. According to Vibrant Health, the rapid, penetrating action of all natural emu oil carries the antiviral and healing power of this unique formula deep into the skin to promote relief and recovery. It may be useful against: cold sores, chicken pox, eczema, psoriasis, dermatitis, diaper rash, acne, surface scarring, bruises, insect bites, and a broad range of skin lesions. Vibrant Health reports that results have been quite good with shingles as well. This product comes in a one-quarter ounce jar and the company stresses that a little goes a long way!
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